To: Lerxst who wrote (5497 ) 4/26/1998 1:12:00 AM From: Hiram Walker Read Replies (1) | Respond to of 6980
Lerxst, Here is an interesting article about WDM,and the Accelar Switch. Well, I was reading some article,and the gigabit switches,seem to need fiber over long distances. It seems that they are using optical lasers,in the infrared spectrum which have dispersion problems over longer distances(like CD ROM lasers). Well, this is interesting,BAY with Cambrian using WDM with the Accelar. Is it better to have a dumb all optical network? Gigabit LANs to span miles of fiber By Stephen Lawson InfoWorld Electric Posted at 4:00 PM PT, Apr 24, 1998 A technology to be demonstrated at NetWorld+Interop in Las Vegas in May could make it feasible for enterprises to set up Gigabit Ethernet LANs across metropolitan area networks. Bay Networks, 3Com, and Packet Engines will join with Cambrian Systems, a maker of wavelength division multiplexing (WDM) equipment, to demonstrate Gigabit Ethernet transmitted directly via the efficient optical networking technology. With WDM, data is transmitted in multiple wavelengths of light, so optical fiber can be used efficiently and the cost of bandwidth to each user sharing the fiber is reduced. The networking companies will connect Gigabit Ethernet interfaces from LAN routing switches into Cambrian's Optera Wavelength Division Multiplexing platform to show the viability of high-speed LAN connectivity across a metropolitan area at a reasonable cost. Bay will link a Gigabit Ethernet interface on its Accelar 1200 routing switch to the Cambrian hardware. Company officials said this approach would not require any conversion of the Ethernet traffic between one enterprise site and another location across the metropolitan area. A LAN could be extended over a service provider's fiber network or over leased fiber, Bay officials said. "The services you could offer over a metropolitan area would be the same ones you could use on the enterprise itself," said Richard Pierce, director of business development at Bay's Internet and Telecom Business Unit. Cisco this week announced a partnership with Ciena to develop carrier-class solutions that combine Cisco's routers and switches with WDM equipment from Ciena, using synchronous optical network technology. Pierce said that Bay and Cambrian's solution would be simpler for most enterprises because it can use standard Ethernet packets without introducing another technology. According to Cambrian officials Bay, 3Com, and Packet Engines have not established partnerships with Cambrian beyond the joint demonstration. Cambrian Systems Corp., in Kanata, Ontario, can be reached at (613) 599-6060 or cambriansys.com . Bay Networks Inc., in Santa Clara, Calif., can be reached at (800) 822-9638 or baynetworks.com . 3Com Corp., in Santa Clara, Calif., can be reached at (408) 764-5000 or 3com.com . Packet Engines Inc., in Spokane, Wash., can be reached at (509) 777-7000 Hiram